KeychainCheck – a quick check of your keychain setup
If you’re suffering problems with your keychains, KeychainCheck provides a basic set of information about them which you can use in diagnosis.
Version 1.3 (Sierra, and High Sierra)
KeychainCheck 2 – thorough diagnostics and tools for your keychain
Completely rewritten, this uses lower-level access to keychains, and will offer sophisticated analysis to perform more thorough diagnosis of keychain problems, and provide tools to fix them. This third alpha release contains more detailed features to work with local and iCloud keychains, in Sierra, High Sierra and Mojave, and works properly in Mojave’s Dark Mode.
PermissionScanner – searches folders for files which are either not writable or not readable
Performs deep search of folders containing Preferences and other files to alert you to potential problems with their permissions. An alternative to the blunt tool of repairing permissions on your whole Home folder, perhaps. Updated to run better in the background.
PermissionScanner 1.3 (Sierra, High Sierra and Mojave)
RepairHomePermissions – repairs the permissions in your Home folder
The only app which will help you repair the permissions in your Home folder, which can fix a variety of different problems, according to Apple. Saves you using Terminal’s command line. First full release, works in background and notarized for Mojave.
RepairHomePermissions 1.1 (Sierra, High Sierra and Mojave)
Keychain Utility Support – coming soon
Permission Repair Support – coming soon
Repairing permissions diagrammed
Updated tools for checking and correcting Home folder permissions
Should you try repairing permissions in High Sierra or later?
The mystery of repairing permissions
Something odd you can’t fix? Sierra re-introduces repairing permissions
Permissions repair tools updated for compatibility with High Sierra
Should you repair permissions on your Home folder, and how?